💧 Waterco HF Alphaflo 075 – 0.75HP Single Phase Pool Pump

⚡ IE3 High Efficiency Motor with Unique Motor Safeguarding Design – Silent, Powerful & Built to Last with 3-Year Warranty

📋 Product Overview

The Waterco HF Alphaflo 075 is a high-performance self-priming swimming pool pump that strikes the perfect balance between power and efficiency. Delivering 9 m³/h flow at 10m head with a maximum flow rate of 17.3 m³/h, this 0.75HP single-phase pump handles medium-sized residential pools with ease while consuming just 0.734 kW – well under a kilowatt of power.

At the heart of the Alphaflo is Waterco’s unique motor safeguarding design. Unlike conventional pumps where a worn mechanical seal can allow water to travel up the motor shaft and destroy the motor, the Alphaflo’s innovative design channels any leaks away from the pump, protecting the motor’s end shield from water contact. This patented protection system means a worn seal doesn’t become a catastrophic motor failure – a crucial advantage that extends the pump’s working life.

The newly designed impeller and diffuser eliminate constrictions and obstacles to maximise hydraulic output while minimising turbulence. The pump body itself has been specially engineered to improve water flow and reduce operating noise, complemented by a heavy-duty pump bracket and insulation that absorbs motor vibration. Built with a strong single-piece glass-filled thermoplastic body, high-grade 316 stainless steel mechanical seal, and 303 grade stainless steel motor shaft, the Alphaflo 075 is compatible with chlorinated water, ozone, iodine, Baquacil, bromine and salt water. Backed by Waterco’s comprehensive 3-year conditional warranty.

⭐ Key Features

✅ Unique Motor Safeguarding Design – Waterco’s exclusive innovation channels water leaks from worn mechanical seals away from the motor, preventing costly motor destruction and ensuring long-lasting reliability

✅ IE3 High Efficiency Motor (>80%) – Exceeds IE3 efficiency standard with only 0.734 kW input power for 0.75HP output, delivering genuine energy savings year after year

✅ Redesigned Impeller & Diffuser – Eliminates constrictions and obstacles, maximising hydraulic output while minimising turbulence for improved flow performance and shorter run times

✅ 316 Stainless Steel Mechanical Seal – High-grade corrosion protection suitable for chlorinated water, ozone, iodine, Baquacil, bromine and salt water systems

✅ 303 Grade Stainless Steel Motor Shaft – Premium-grade shaft material resists corrosion and ensures durability in demanding wet environments

✅ Automatic Thermal Overload Protection – Built-in safety automatically shuts down the pump in case of high amperage or overheating, preventing motor damage

✅ Whisper-Quiet Operation (~58-60 dBA) – Specially designed pump body reduces water turbulence, plus heavy-duty bracket and insulation absorbs motor vibration for remarkably quiet performance

✅ Strong Single-Piece Pump Body – Glass-filled thermoplastic construction with integrated strainer pot and volute for maximum strength and durability

✅ Clear Basket Lid – Transparent lid allows easy visual inspection of the 2.05L strainer basket without disassembly

✅ Quick Connect Barrel Unions – 50mm UPVC pipe unions (40/50mm) included for hassle-free installation on inlet and outlet

✅ Stable & Insulated Support Base – Heavy-duty base provides secure mounting while further reducing vibration and operating noise

✅ Drain Plugs – Convenient drainage for winterisation and seasonal maintenance

🔧 Technical Specifications

Specification	Detail
Model	HF Alphaflo 075
Product Code	248075EUM
Output Power (P2)	0.75 HP
Input Power	0.734 kW
Motor Input Power (Rated)	0.740 kW
Amperage	3.3 A
Motor Current (Rated)	3.4 A
Power Supply	Single Phase 220-240V
Frequency	50 Hz
Nominal Speed	2810 RPM
Flow Rate @ 8m Head	195 lpm (11.7 m³/h)
Flow Rate @ 10m Head	157 lpm (9 m³/h)
Maximum Flow Rate (Qmax)	17.3 m³/h
Maximum Head (Hmax)	14.1 m
Minimum Head (Hmin)	2.0 m
Maximum Water Temperature	40°C
Protection Rating	IP5 (IPX5)
Motor Type	Asynchronous, TEFC
Motor Insulation	Class F
Efficiency Rating	> 80% (IE3 Standard)
Motor Shaft	303 Grade Stainless Steel
Mechanical Seal	316 Stainless Steel
Pump Type	Self-Priming Water Pump
Pump Body	Single-piece glass-filled thermoplastic
Strainer Basket Volume	2.05 Litres
Inlet/Outlet Ports	50mm
Unions Included	40/50mm quick-connect barrel unions
Safety Features	Thermal overload protection (auto shutdown)
Total Length	626 mm
Motor Frame	71 mm
Water Compatibility	Fresh water & Salt water (up to 6 g/L / 6000 ppm)
Chemical Compatibility	Chlorine, Ozone, Iodine, Baquacil, Bromine, Salt
Operating Mode	Controlled by filtration timer
Warranty (Pump)	3 Years (Conditional)
Warranty (Wet End)	3 Years
Warranty (Motor/Seal/Lid/Basket)	2 Years
Commercial Warranty	1 Year
Labour Warranty	1 Year
Manufacturer	Waterco

💰 Usage Costs & Running Expenses

Understanding your pump’s operating costs helps with budgeting and comparing options. Here’s a detailed breakdown for the HF Alphaflo 075:

📊 Annual Running Cost Calculation

Input Power: 0.734 kW (Waterco Tech Spec)
UK electricity rate: £0.2769 per kWh (Ofgem Price Cap Q1 2026)

🏊 Scenario 1: Seasonal Pool Use (April – September)

Typical UK outdoor pool operating during warmer months.

Parameter	Value
Daily runtime	8 hours
Season length	180 days (6 months)
Annual operating hours	1,440 hours

📈 Calculation:

• Energy consumed: 0.734 kW × 1,440 hours = 1,056.96 kWh/year
• ✅ Annual cost: 1,056.96 × £0.2769 = £292.67

💷 Under £295 per year for complete seasonal pool circulation!

🔥 Scenario 2: Year-Round Heated/Indoor Pool

Indoor or heated pools requiring continuous circulation throughout the year.

Parameter	Value
Daily runtime	10 hours
Operating days	365 days
Annual operating hours	3,650 hours

📈 Calculation:

• Energy consumed: 0.734 kW × 3,650 hours = 2,679.1 kWh/year
• ✅ Annual cost: 2,679.1 × £0.2769 = £741.84

💷 Under £745 per year for continuous year-round operation!

☀️ Scenario 3: Light Use / Medium Pool

Medium pools with moderate filtration requirements.

Parameter	Value
Daily runtime	6 hours
Season length	150 days (5 months)
Annual operating hours	900 hours

📈 Calculation:

• Energy consumed: 0.734 kW × 900 hours = 660.6 kWh/year
• ✅ Annual cost: 660.6 × £0.2769 = £182.96

💷 Under £185 per year for moderate seasonal use!

🔊 Sound Level Performance

The Alphaflo 075 is specifically engineered for quiet residential operation:

Metric	Detail
🔇 Sound pressure level	~58-60 dBA
🗣️ For reference	Normal conversation = ~60 dBA
🌙 Residential suitability	Ideal for noise-sensitive locations

Sound data from Waterco Alphaflo Brochure (ZZB2231). The pump body is designed to reduce water turbulence, while the heavy-duty bracket and insulation absorb motor vibration – resulting in remarkably quiet operation.

🔋 IE3 Efficiency Advantage

The HF Alphaflo exceeds IE3 motor efficiency standards (>80%), delivering significant benefits:

Benefit	Detail
⚡ Lower energy bills	0.734 kW input for 0.75HP output = minimal wasted electricity
🌱 Reduced carbon footprint	Less energy consumed = lower emissions
🔥 Cooler running	Less heat generated = longer motor life
📉 Moderate current draw	3.3A draw suits standard domestic electrical circuits

🎯 Real World Examples & Applications

🏊‍♂️ Medium Domestic Pools (30-50m³)

The Alphaflo 075 is the sweet spot for typical UK medium-sized garden pools. With 11.7 m³/h flow rate at 8m head and maximum flow of 17.3 m³/h, it can turn over a 36m³ pool approximately every 3 hours – comfortably achieving the recommended 2-3 turnovers daily for crystal-clear water. The compact 626mm total length fits easily into standard residential plant rooms.

🏠 Pools with Heating & Ancillary Systems

When your pool system includes a heat exchanger, solar heating, or in-floor cleaning, you need a pump with sufficient head pressure. The Alphaflo 075 delivers up to 14.1m maximum head – providing the extra push needed to overcome resistance from heating circuits, longer pipe runs, and additional equipment without straining the motor.

🌊 Salt Chlorinated & Multi-Chemical Pools

The 316 stainless steel mechanical seal provides comprehensive protection against virtually every pool sanitisation method – chlorinated water, ozone, iodine, Baquacil, bromine and salt water up to 6,000 ppm. Whatever your water treatment system, the Alphaflo handles it without corrosion concerns.

🔄 Retrofit & Replacement Upgrades

Waterco’s Easy Retrofit design means the Alphaflo 075 can replace many existing pump models with minimal pipework changes. The 50mm ports with included 40/50mm quick-connect barrel unions simplify connection to standard UPVC pool plumbing. Upgrading from an older, less efficient pump can deliver immediate energy savings.

🏢 Small Commercial & Holiday Let Properties

Holiday cottages, B&Bs, and small leisure facilities benefit from the 0.75HP power level that handles demanding filtration schedules. The automatic thermal overload protection safeguards against damage during unattended operation, while the unique motor safeguarding design means even a worn seal doesn’t destroy the motor – essential for remote or commercial installations.

💡 Cost Savings Examples

📍 Scenario: Upgrading from an Older 1.0kW Single Speed Pump

Many older installations feature oversized or less efficient pumps. Here’s what switching to the Alphaflo 075 could save:

	❌ Old 1.0kW Pump	✅ Alphaflo 075
Power consumption	1.0 kW	0.734 kW
Seasonal energy (1,440 hrs)	1,440 kWh	1,056.96 kWh
Annual electricity cost	£398.74	£292.67
Annual Saving	—	💰 £106.07

📈 Over 10 years: £106.07 × 10 = £1,060.70 in reduced electricity bills!

⏱️ Payback period: With over £1,000 potential savings over the pump’s lifetime, excellent return on investment!

📍 Scenario: Alphaflo 075 vs Typical Competitor 0.75HP Pump (0.80kW)

Comparing against a less efficient competitor at the same HP rating:

	❌ Competitor 0.75HP (0.80kW)	✅ Alphaflo 075 (0.734kW)
Power consumption	0.80 kW	0.734 kW
Seasonal energy (1,440 hrs)	1,152 kWh	1,056.96 kWh
Annual cost	£319.07	£292.67
Annual Saving	—	💰 £26.40

📊 Over 10 years: £26.40 × 10 = £264.00 saved – the IE3 efficiency advantage delivers real savings!

📍 Scenario: Year-Round Indoor Pool vs 1.5kW Pump

For heated indoor pools where an oversized pump is wasting energy:

	❌ 1.5kW Pump (Oversized)	✅ Alphaflo 075 (Right-sized)
Power consumption	1.5 kW	0.734 kW
Annual energy (3,650 hrs)	5,475 kWh	2,679.1 kWh
Annual cost	£1,516.10	£741.84
Annual Saving	—	💷 £774.26

⏱️ Payback period: Potential to recover pump cost through energy savings in approximately 12 months!

📍 Scenario: Comparing Daily Running Costs

For a quick snapshot of what the Alphaflo 075 costs to run each day:

Usage Pattern	Daily Hours	Daily kWh	💰 Daily Cost
☀️ Light filtration	4 hours	2.94 kWh	£0.81
🏊 Standard season	8 hours	5.87 kWh	£1.63
🔥 Extended/heated	10 hours	7.34 kWh	£2.03
♨️ Continuous	12 hours	8.81 kWh	£2.44

💵 Under £2 per day for typical 8-hour seasonal operation!

📥 Downloads & Resources

 Waterco Alphaflo Pool Pumps Brochure (PDF) – Complete product overview, features, flow curves, sound levels and dimensional drawings (April 2025)

 Waterco Alphaflo Technical Specification – Full Range (PDF) – Detailed technical specifications for all Alphaflo models including ECO-V variable speed

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🏆 Why Choose This Pump

✅ Unique Motor Safeguarding – Waterco’s exclusive design protects the motor from water damage caused by worn seals – extending pump life far beyond conventional designs

✅ IE3 Premium Efficiency (>80%) – Only 0.734 kW input power for 0.75HP output, keeping seasonal running costs under £295 per year

✅ Powerful Yet Quiet (~58-60 dBA) – Delivers 17.3 m³/h maximum flow while operating at conversational noise levels, perfect for residential gardens

✅ 316 SS Mechanical Seal – Universal chemical compatibility – handles chlorine, ozone, iodine, Baquacil, bromine and salt water without corrosion

✅ 14.1m Maximum Head – Sufficient pressure for pools with heating circuits, in-floor cleaning, and extended pipe runs

✅ 303 Grade SS Motor Shaft – Premium corrosion-resistant shaft material ensures long motor life in wet environments

✅ Single-Piece Glass-Filled Body – Integrated strainer pot and volute construction provides maximum strength and durability

✅ Comprehensive 3-Year Warranty – Detailed component-level warranty coverage demonstrates Waterco’s confidence in build quality

✨ Summary

The Waterco HF Alphaflo 075 delivers the ideal combination of power, efficiency, and protection for medium-sized residential pools. Its unique motor safeguarding design – channelling any seal leaks away from the motor – provides a level of protection not found on competitor pumps, while the IE3-exceeding efficiency (>80%) keeps seasonal running costs under £295 per year at just 0.734 kW. With 17.3 m³/h maximum flow and 14.1m head, it handles pools up to 50m³ including heating circuits and ancillary systems with ease. The whisper-quiet operation at ~58-60 dBA, high-grade 316 SS seal compatible with every sanitisation system, and robust single-piece glass-filled body make this pump an outstanding investment. Backed by Waterco’s comprehensive 3-year warranty and over 40 years of water technology expertise – engineered for durability and performance.